公开(公告)号：US20190274167A1

公开(公告)日：2019-09-05

申请号：US16415881

申请日：2019-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenyu LI ,  Hantao LI ,  Chuan LIU ,  Lei HU

IPC: H04W74/08 ,  H04W72/12 ,  H04B17/318 ,  H04L1/00 ,  H04W72/08 ,  H04W52/24

Abstract: Embodiments of the present disclosure provide a data transmission method and apparatus. The method includes: obtaining, by a base station, at least one clear channel assessment (CCA) detection threshold; determining a current CCA detection threshold from the at least one CCA detection threshold; determining transmit power of to-be-sent data based on the current CCA detection threshold; and sending the to-be-sent data to a target terminal based on the transmit power. In this way, a CCA detection threshold is flexibly selected, the transmit power is adaptively adjusted, and a probability of space division multiplexing and spectrum usage efficiency are improved, thereby increasing a system capacity and avoiding interference between systems.

公开(公告)号：US20180219275A1

公开(公告)日：2018-08-02

申请号：US15938560

申请日：2018-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changshun DENG ,  Chuan LIU ,  Ke LONG ,  Shuchen ZHAO ,  Ji YAN

IPC: H01Q1/24 ,  H01Q9/04 ,  H01Q1/38 ,  H01Q1/48

CPC classification number: H01Q1/243 ,  H01Q1/246 ,  H01Q1/38 ,  H01Q1/48 ,  H01Q1/528 ,  H01Q9/0421 ,  H01Q9/0457 ,  H01Q9/0471 ,  H01Q19/005

Abstract: A communications device is provided, including a metal carrier having a mounting plane with at least one mounting area, and further includes an antenna element disposed in each mounting area. The mounting area is where the mounting plane intersects a circle centered at a feedpoint of the antenna element in the area and whose radius does not exceed a specified radius. When a boundary line of the mounting area includes a boundary line, a distance from the feedpoint to the boundary line is less than or equal to a specified distance; and/or when a boundary line of the mounting area includes a vertex of the mounting plane, a distance from the feedpoint to the vertex is less than or equal to a specified distance. A feed position on the antenna element is designed to obtain relatively good antenna roundness performance and enhance an antenna signal coverage effect.

公开(公告)号：US20210249789A1

公开(公告)日：2021-08-12

申请号：US17244584

申请日：2021-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ke LONG ,  Chuan LIU ,  Biao FENG

IPC: H01Q21/24 ,  H01Q21/06 ,  H01Q21/00

Abstract: A dual-polarized antenna, an antenna array, and a communications device are disclosed. The dual-polarized antenna includes a base board, a horizontally polarized antenna, and a vertically polarized antenna. The substrate includes a first substrate and a plurality of second substrates stacked on the first substrate. The horizontally polarized antenna includes a first radiating element disposed on the first substrate, and a first feeding unit that feeds the first radiating element. The vertically polarized unit includes a second radiating element and a second feeding unit that feeds the second radiating element. The second radiating element includes a first metal patch disposed on each second substrate. In the foregoing technical solution, the base board formed by the stacked substrates is used as a support part, so that the horizontally polarized antenna and the vertically polarized antenna are disposed on the base board, thereby reducing space occupied by the dual-polarized antenna.